53497399 has 4 divisors (see below), whose sum is σ = 53547264. Its totient is φ = 53447536.

The previous prime is 53497397. The next prime is 53497403. The reversal of 53497399 is 99379435.

53497399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53497399 - 2¹ = 53497397 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53497391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23287 + ... + 25480.

It is an arithmetic number, because the mean of its divisors is an integer number (13386816).

Almost surely, 2^53497399 is an apocalyptic number.

53497399 is a deficient number, since it is larger than the sum of its proper divisors (49865).

53497399 is a wasteful number, since it uses less digits than its factorization.

53497399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49864.

The product of its digits is 918540, while the sum is 49.

The square root of 53497399 is about 7314.1916163032. The cubic root of 53497399 is about 376.7999956989.

The spelling of 53497399 in words is "fifty-three million, four hundred ninety-seven thousand, three hundred ninety-nine".